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The ADI-2 Pro from RME is a versatile reference-class AD/DA converter which can be used as a USB audio interface, USB DAC with Extreme Power headphone amplifiers, or format converter with digital monitoring. Housed in a compact, half-rack enclosure, it delivers pristine 32-bit/768 kHz audio quality to audio engineers and audiophiles alike, for studio, home, and mobile applications ranging from analog/digital recording, PCM/DSD recording and playback, precise audio measurements, or as a high-fidelity frontend and headphone amp for iPhone/iPad/Android devices.

The ADI-2 Pro is equipped with six input sources and eight output paths, for simultaneous 2-channel analog-to-digital input conversion and 4-channel digital-to-analog output conversion. The I/O options include two servo-balanced analog line inputs, two separate balanced and unbalanced analog outputs, one optical S/PDIF I/O which also supports two channels of ADAT operation, and, via the included digital breakout cable, one coaxial S/PDIF I/O and one AES/EBU I/O.

The unit supports all sample rates between 32 kHz and 768 kHz, and delivers a flat frequency response with an impressive 124 dBA signal-to-noise ratio. The company's SteadyClock III efficiently suppresses jitter in all clock modes, ensuring that the AD/DA conversion's sonic quality remains consistent, independently from the quality of the incoming clock signal.

The two Extreme Power headphone outputs provide high-end monitoring options optimized for low- and high-impedance headphones. They feature an Advanced Balanced mode which delivers a balanced signal path from the DAC straight to the phone, with optimized frequency response and a maximum output level of +28 dBu. A powerful DSP adds all kinds of useful audio processing, including 5-band parametric EQ, fast Bass/Treble adjustment, Crossfeed, and a sophisticated Loudness function.

The ADI-2 Pro features a high-resolution ISP LCD panel which eases operation and displays signal metering of all I/Os, current digital states of S/PDIF, AES, USB, a 30-band analyzer, and more. The unit can be used as a standalone, and operated with three push-button encoders and four buttons to access dedicated menus.

Features

High-fidelity anniversary reference-class 768 kHz AD/DA converter

High-resolution PCM/DSD recording and playback

Two Extreme Power headphone amplifiers for audiophile-quality monitoring

The unit will turn into different operating modes depending on the connected cables

Preamp Mode / analog in to analog out – this mode is active when no digital input signal and no USB is detected

AD/DA Converter Mode (analog in to all digital outs, digital in to all analog outs) – this mode becomes active as soon as a digital signal is sensed by the unit

USB or Interface Mode (USB is detected and all inputs are routed to USB, all outputs are fed from USB) – provides 6 channels (Analog 1/2, AES, SPDIF) of recording, 8 channels (Analog 1/2/3/4, AES, S/PDIF) of playback, and works as iPad frontend at up to 192 kHz sample rate